Title :
Shear-wave magnetometry using metallic glass ribbon
Author :
Squire, P.T. ; Gibbs, M.R.J.
Author_Institution :
University of Bath, School of Physics, Bath, UK
Abstract :
A novel type of magnetometer is proposed. The magnetic field is measured via the magnetoelastic effect in amorphous magnetic ribbon material, using the phase of an ultrasonic shear wave. Preliminary measurements yield a sensitivity of 15nT with a 1 s time constant. Order-of-magnitude estimates indicate a potential sensitivity of less than 1 pT.
Keywords :
magnetic field measurement; magnetoacoustic effects; magnetoelastic effects; magnetometers; metallic glasses; 1 s; magnetic field measurement; magnetoelastic effect; metallic glass ribbon; sensitivity; shear wave magnetometry; time constant; ultrasonic shear wave;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870103
